Continuous Spraying Sterilizer

Continuous Spray Sterilizer for Bottled and Canned Juice

The continuous spraying sterilizer treats sealed bottles or cans as they travel through a spray tunnel. It can be configured for packaged fruit juice, beverages and suitable liquid seasonings. In a validated pasteurization configuration, buyers may also refer to this type of equipment as a tunnel pasteurizer. The required treatment, container compatibility and target outlet temperature must be specified for each product and package.

Four-Stage Tunnel Spray Heat Treatment Process

Containers move by conveyor through four temperature stages: preheating, heating or holding, precooling and cooling. Spray water at controlled temperatures transfers heat through the package. Water can return to collection tanks for reuse within the designed circuit. Conveyor speed, zone temperatures and hold time determine the actual treatment; they must be validated for the product rather than assumed from the equipment layout alone.

Automatic and Semi-Automatic Spray Sterilizer Options

An automatic version can use PLC controls to run the specified temperature and conveyor-speed profile. A semi-automatic version allows operators to control pumps, valves and return flow from the panel, with PID temperature control and temperature recording where configured. Final controls depend on the line requirements.

Continuous Spraying Sterilizer Features and Reference Data

• Four temperature zones provide staged heating and cooling; the profile should be selected for the container and required process.
• PLC touch-screen temperature control and adjustable conveyor speed can be specified.
• The cited frame and body material is stainless steel 304; confirm final material scope and grade in the quotation.
• Listed reference figures are 100–400 cans/min production capacity, 100 °C treatment temperature and 0.4 MPa steam pressure. Actual values depend on package size, product, target treatment and configuration.
• Steam use and total treatment time depend on the temperature profile and line speed.

Container Handling and Operating Considerations

• Confirm bottle or can dimensions, closure type and permissible thermal shock before selecting the process.
• Use a transition between hot and cool zones to manage package temperature change.
• Check bearings, conveyor drive and spray nozzles during routine maintenance.
• Continuous operation with adjustable speed allows treatment time to be set for the validated process.

Packing and Delivery of the Spray Sterilizer

Final packing and delivery arrangements are confirmed for the selected tunnel length and destination.